Improved fruit-jar



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FRUIT JAR.

PATENTED APR. 14, 1868.

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Letters Patent No, 76,846, dated April 14, 1868.

IMPROVED FRUIT-JAR.

the Stimuli ttttmti tn in tinstfltttert Katine on making 'pttt'tt fig: rims.

TO ALL WHOM IT, MAY CONCERN:

) Be' it known that I, DRAPER STQNE, of the city of. Rochester, in the State of New York, have invented a new and useful Improved Fruit-Jar; and I do hereby-declare that the following is a full', clear, and exact description thereof, reference being had'to the accompanying drawing, making part of this specification, in which Figure 1 is a sectional view of the top of my jam, showing the cover and air-tight packing.

Figure 2 is a view of th e paching ring. I

The nature of this invention will be fully understood from the drawings and specification.

To enable'others skilledin the art to make and use my invention, I will proceed to describe its construction and" operation. Y

I form the top or neck, K, of my jar with a slight groove, a, on the outside, and I cut'from tin, or other metal, with a die, an annular piece, which forms the cover/b. This cover has the same'diameter as the outside circle of the jar-neck. I 1

I then cut out of a sheet of rubber a ring, H, as shown in fig. 2, for the packing to make an air-tightjoint. This ring is less in diameter than the cover of the jar. I then stretch it over the jar-neck until aboutone-hnlf, shown by the red line in fig..2, is brought downon the-outside'of the neck, as shown ate, in fig. 1. This leaves theother part of the pecking-ring bent over the top of the. cover, as shown at d in fig. 1. I then bind it by winding wire, or other suitable material, tightly around it, which compresses the rubber into the groove a.

The object of this device is to obtain it cheap air-tight cover for fruit-jars; the rubberpacking being stretched on the outside circumference, contracts the inner edge, and causes it to form a sleeve over the joint mode by the cover and neck of the jars, and it operates in the following manner: The jar being filled with warur fruit and sirup, which excludes the air, the part of the packingshown at d, fig. 1, is turnedback and down over the side. The cover is then laid on the top of the jar, and the packing sprung hack to its place, as shown at din fig. 1, covering the joint formed by the cover and the jar. The air being excluded as the fruit and sirup cool,- a more perfect vacuum is formed, and the outside atmosphere presses the rubber into all the interstices between the metal cover and t-hejar-neck, and formsa perfectly air-tight joint, even if the top of the jar is uneven.

What I claim as my invention, and wish to secu're by Letters Patent, is-

The annular or flat packing-ring H, constructed. and applied substantially in the manner shown and described, in combination with the cover of fruit-jars, for the purpose specified.

" DRAPER STONE.

Witnesses:

E. G. 000K, JAS. LORENZO GAGE. 

